FIG. 1.

(a) Top-view picture of a T-shaped microchannel (filled with green food dye for clarity) for morphology-based yeast cell fractionation in dilute ferrofluids. The block arrows indicate the flow direction in each branch of the microchannel. The separation of yeast cells is viewed at the expansion of the main branch. (b) Zoom-in image of drug-treated yeast cells that are classified into four groups with different shapes and sizes: Singles, Doubles (i.e., with single buds), Triples (i.e., with two buds), and Others.